Electric-cable terminal.



, I 6.. ,L.-- HERZ.

ELECTRIC CABLE TERMINAL.

APPLICATION FILED APR.9. I913. I

1,16'K820j Patented Jan. 11, 1916.

l IIIII IEIIIIIIIIII III IIIL I iz %m I- W novel features ofconstruction whereby an.

GUSTAVE :1 H1332, OF VIENNA, AUSTRIA-HUNGARY.

ELECTRIC-CABLE TERMINAL.

menses Specification of Letters Patent.

, Patented Jan. it, $916 Application filed April 9, 1913; Serial No.759,974.

ment in Electric-Cable Terminals, of which the following is aspecification; I V

The object of this invention is to provide electric cable terminal maybe securely fastened to its cable and may be readily attached to andremoved from electric connection with the spark plug electrode.

A practical embodiment of my invention is represented in theaccompanying drawings, in which Figure 1 represents the terminal in sideelevation. the terminal being shown secured to the cable and attached toa spark plug, Fig. 2 is a longitudinal central section through the cableand terminal, the spark plug being shown'in side elevation, and Fig. 3is a section taken in the plane of the line A-A of Fig. 2, looking inthe direction of the arrows.

The spark plug is denoted as a whole by 1, its electrode by 2 and a capby 3. This cap 8 is screwed onto the outer end of the electrode 2 and isprovided with a contrally arranged exteriorly screw threaded lug 4 forattachment to the terminal, as will be hereinafter described.

The terminal comprises a non-conducting casing 5, a socket piece 6, ahead 7 and a screw eye 8. The screw eye 8 and the socket piece '6 aremade of conducting material. The head 7 is embedded in the casing 5 andheld against movement-therein. This head has a centrally arranged lug 9which projects into the bore of the socket piece 6 and the socket piece6 is rotatably mounted on said head by spreading the end of the lug 9outwardly over a shoulder 10 formed in the boreof the said socket piece.

The socket piece 6 is provided with a milled head all exterior to thecasing 5 for the purpose of rotating-the socket piece. The bore of thesocket piece is screw threadedtofit the screw threaded lug 4 of the cap3 so that the terminal may be rapidly attached to' and removed from thethe. recess 12.,

spark plug by a rotary movement of the socket piece 6 in one orthe otherdirection.

The casing 5 is provided with a recess 12 having its walls screwthreaded.

The electric conducting cable comprises the usual core 13 and protectivecovering 14.

The shank of the socket piece 6 extends through the eye of the screw eye8 and is in electrical contact therewith at all times. The

screw threaded portion of the screw eye 8 extends centrally into therecess 12. The end of the cable is inserted into the recess 12 and ithas a screw threaded engagement with both the screw eye 8 and the wallsof As the cable is screwed into its position, the screw eye is broughtinto engagement with the wires whichform the core 13 of the cable. Thescrew eye thus holds the cable in its recessand in electric connectionwith the socket piece, without interfering with the rotary movement ofthe socket piece. It is evident that slight changes might be resorted toin the form, construction and arrangement of the several parts withoutdeparting from the spirit and scope of my invention hence I do not wishto limit myself strictly totherstructure herein set forth, but- What Iclaim is A cable terminal for spark plugs co'mpris ing a non-conductingcasing, a head embedded therein, said head being provided with adownwardly. extending lughaving its lower portion! outwardly spreading,a socket piece provided with"'aninwardly extending shoulder adaptedto'engagethe outwardly spreading portion of said lug, thereby forming aswivel connection between said head and said socket piece, said socketpiece being screw threaded for engagement with the spark plug.

In testimony, that I claim the foregoing as-my invention, I have signedmy name in presence of two witnesses, this second day of April 1913.

GUSTAVE L. nnaz.

Witnesses:

F. Gnoncn BARRY, C. -L. LUNDGREN.

